Flashcards
ECG Disorders- Cardiology 4th Year- PMU
Cards in this deck (15)
- 1—Premature Atrial Contraction (Supra-ventricular Premature Contraction)
ECG
1. Premature beat appears early
2. After this there is a compensatory pause before the next sinus p wave
3. This means that there is a really short RR interval and the very next RR interval is longer but is u combine these 2 their length will be shorter than 2 normal RR intervals due to the incomplete compensatory pause - 2—Supraventricular Tachycardia
ECG
No p wave
Very short RR interval
Normal QRS
- 3—Atrial Fibrillation
ECG
No P waves
Arrhythmia
F waves
No isoelectric line
- 4—Atrial Flutter
ECG
F waves- sawtooth
No p waves
No isoelectric line
- 5—Premature Ventricular Contractions (Ventricular Extrasystole)
ECG
No P wave preceeding PVC
Wide & Bizzare QRS.
QRS will be at least 0.12s-0.14s
- 6—Ventricular Tachycardia
ECG
Monomorphic QRS complex- all look the same- from re-entrant loop
Polymorphic QRS
Increased heart rate
Regular rhythm
No p-wave or disassociated p-wave
No PR interval
Wide QRS width
- 7—Ventricular Fibrillation
ECG
Chaotic rhythm
No p wave
No PR interval
No QRS complex is identifiable
Looks like a bunch of squiggly line
- 8—AV Block Type 1
ECG
The signal to AV node is delayed
Increased PR Interval
- 9—AV Block
Type 2a (Mobitz 1)
ECG
The signal (PR interval) gets progressively delayed until a ‘dropped beat’
- 10—AV Block
Type 2b (Mobitz 2)
ECG
There are intermittent random dropped beats
No PR lengthening
- 11—AV Block
Type 3 (Complete)
ECG
P waves have no relation to QRS intervals
- 12—Right Bundle Branch Block
ECG
1. Shows RR waves due to slow activation of contraction left/right ventricles
• ‘Bunny ears’
2. Wide QRS Complex
3. RR wave in right leads- V1 and V2
4. S wave in Lead 1 is wider >0.04 and this S wave is also in V5 and V6
- 13—Left Bundle Branch Block
ECG
1. Shows RR waves due to slow activation of contraction left/right ventricles
• ‘Bunny ears’
2. Wide QRS complex
3. RR wave in left leads- V5 and V6
4. Also RR in first and aVL
5. R wave don’t increase in V1 to V4- Pathological progression
- 14—SA Node Block
Heart Rate- Varies
Rhythm- Irregular
P waves- Present and normal
Pr Interval- Normal
Dropped Beats- present
- 15—Wolf Parkinson White Syndrome
Short PR interval
“Delta wave“ - A delta wave is slurring of the upstroke of the QRS complex.
Short PR interval
Wider QRS complexes
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- Medicine Cardiology Flashcards on ECG Disorders- Cardiology 4th Year- PMU, created by Med Student on 10/03/2019.
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- Med Student
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